DocumentCode :
2336414
Title :
WLC11-3: Downlink MIMO Channel Estimation for Transmission Precoding
Author :
Dong, Xiaofei ; Ding, Zhi
Author_Institution :
Altera Corp., San Jose, CA
fYear :
2006
fDate :
Nov. 27 2006-Dec. 1 2006
Firstpage :
1
Lastpage :
5
Abstract :
Transmission precoding in MIMO wireless systems can significantly improve system capacity and diversity gain. The effectiveness of MIMO precoding depends critically on accurate knowledge of channel state information available to the transmitter. In this paper we describe a novel method for the feedback of downlink channel estimation from an end user unit. Instead of letting the mobile receivers first identify and then send back the downlink channel parameters, a receiver returns portions of its received data back to the base station for channel identification. The base-station can then utilize all the channel information to design channel-aware downlink precoders. Simulation results are provided to illustrate the performance of the proposed methods.
Keywords :
MIMO communication; channel capacity; channel coding; channel estimation; diversity reception; mobile radio; precoding; radio receivers; radio transmitters; wireless channels; channel capacity; diversity gain; downlink MIMO channel estimation; feedback; mobile receiver; transmission precoding; wireless transmitter; Bandwidth; Base stations; Channel estimation; Channel state information; Delay estimation; Downlink; Feedback; MIMO; Space stations; Transmitters;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Global Telecommunications Conference, 2006. GLOBECOM '06. IEEE
Conference_Location :
San Francisco, CA
ISSN :
1930-529X
Print_ISBN :
1-4244-0356-1
Electronic_ISBN :
1930-529X
Type :
conf
DOI :
10.1109/GLOCOM.2006.676
Filename :
4151306
Link To Document :
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